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鄱阳湖水位变化对湿地植物群落分布的影响
作者: 杜泽兵 谢正磊 向丽雄 徐丽婷 谢超 王月 吴燕平 满谦宁  来源:安徽农业科学 年份:2015 文献类型 :期刊 关键词: 湿地植物  水位变化  鄱阳湖  分布规律 
描述:[目的]探明水住与典型湿地植物生长之间的相互复杂关系,揭示湿地植物依赖水位变化的生长规律。[方法]通过选择不同月份的遥感影像,经解译定量分析不同水位条件下湿地植被带面积及其空间分布规律。[结果
全文:[目的]探明水住与典型湿地植物生长之间的相互复杂关系,揭示湿地植物依赖水位变化的生长规律。[方法]通过选择不同月份的遥感影像,经解译定量分析不同水位条件下湿地植被带面积及其空间分布规律。[结果
鄱阳非平稳水位波动及其与长江的交互作用关系
作者: 戴雪 万荣荣 杨桂山  来源:地理学报(英文版) 年份:2015 文献类型 :期刊 关键词: Yangtze  earlier  seasonal  intensified  downstream  lacustrine  river  representative  flood  dominate 
描述:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
全文:Seasonal water-level fluctuations(WLF) play a dominate role in lacustrine ecosystems. River-lake interaction is a direct factor in changes of seasonal lake WLF, especially for those lakes naturally connected to upstream and downstream rivers. During the past decade, the modification of WLF in the Poyang Lake(the largest freshwater lake in China) has caused intensified flood and irrigation crises, reduced water availability, compromised water quality and extensive degradation of the lake ecosystem. There has been a conjecture as to whether the modification was caused by its interactions with Yangtze River. In this study, we investigated the variations of seasonal WLF in China’s Poyang Lake by comparing the water levels during the four distinct seasons(the dry season, the rising season, the flood season, and the retreating season) before and after 2003 when the Three Gorge Dam operated. The Water Surface Slope(WSS) was used as a representative parameter to measure the changes in river-lake interaction and its impacts on seasonal WLF. The results showed that the magnitude of seasonal WLF has changed considerably since 2003; the seasonal WLF of the Poyang Lake have been significantly altered by the fact that the water levels both rise and retreat earlier in the season and lowered water levels in general. The fluctuations of river-lake interactions, in particular the changes during the retreating season, are mainly responsible for these variations in magnitude of seasonal WLF. This study demonstrates that WSS is a representative parameter to denote river-lake interactions, and the results indicate that more emphasis should be placed on the decrease of the Poyang Lake caused by the lowered water levels of the Yangtze River, especially in the retreating season.
鄱阳湖滨沙地不同植被恢复模式土壤生态环境特征的研究
作者: 罗秋月  来源:江西农业大学 年份:2015 文献类型 :学位论文 关键词: 土壤酶  植被恢复  土壤肥力质量  肥力评价  湖滨沙地 
描述:鄱阳位于江西省境内,是重要的湿地。随着鄱阳湖流域人口增多,人民的生产和生活活动加剧,再加上近年来气候的多变,鄱阳湖滨地区出现了严重的土地沙化现象。本文以位于鄱阳湖流域星子县蓼花镇沙岭的生态恢复
全文:鄱阳位于江西省境内,是重要的湿地。随着鄱阳湖流域人口增多,人民的生产和生活活动加剧,再加上近年来气候的多变,鄱阳湖滨地区出现了严重的土地沙化现象。本文以位于鄱阳湖流域星子县蓼花镇沙岭的生态恢复
鄱阳湖滨沙地不同植被恢复模式土壤生态环境特征的研究
作者: 罗秋月  来源:江西农业大学 年份:2015 文献类型 :学位论文 关键词: 土壤酶  植被恢复  土壤肥力质量  肥力评价  湖滨沙地 
描述:鄱阳位于江西省境内,是重要的湿地。随着鄱阳湖流域人口增多,人民的生产和生活活动加剧,再加上近年来气候的多变,鄱阳湖滨地区出现了严重的土地沙化现象。本文以位于鄱阳湖流域星子县蓼花镇沙岭的生态恢复
全文:鄱阳位于江西省境内,是重要的湿地。随着鄱阳湖流域人口增多,人民的生产和生活活动加剧,再加上近年来气候的多变,鄱阳湖滨地区出现了严重的土地沙化现象。本文以位于鄱阳湖流域星子县蓼花镇沙岭的生态恢复
鄱阳湖滨沙地不同植被恢复模式土壤生态环境特征的研究
作者: 罗秋月  来源:江西农业大学 年份:2015 文献类型 :学位论文 关键词: 土壤酶  植被恢复  土壤肥力质量  肥力评价  湖滨沙地 
描述:鄱阳位于江西省境内,是重要的湿地。随着鄱阳湖流域人口增多,人民的生产和生活活动加剧,再加上近年来气候的多变,鄱阳湖滨地区出现了严重的土地沙化现象。本文以位于鄱阳湖流域星子县蓼花镇沙岭的生态恢复
全文:鄱阳位于江西省境内,是重要的湿地。随着鄱阳湖流域人口增多,人民的生产和生活活动加剧,再加上近年来气候的多变,鄱阳湖滨地区出现了严重的土地沙化现象。本文以位于鄱阳湖流域星子县蓼花镇沙岭的生态恢复
2000-2010年鄱阳地区生态系统服务价值空间格局及其动态演化
作者: 涂小松 龙花楼  来源:资源科学 年份:2015 文献类型 :期刊 关键词: 空间格局  动态演化  土地覆被  鄱阳湖地区  生态系统服务价值 
描述:2000-2010年生态系统服务价值空间格局及其动态演化。结果表明:1鄱阳地区生态系统服务价值总量较高,但价值净损失趋于加速,2000-2005年价值净损失1.10亿元,2005-2010年净损
全文:2000-2010年生态系统服务价值空间格局及其动态演化。结果表明:1鄱阳地区生态系统服务价值总量较高,但价值净损失趋于加速,2000-2005年价值净损失1.10亿元,2005-2010年净损
鄱阳湖流特征
作者: 王婧 曹卫芳 司武卫 郭章亮  来源:南昌工程学院学报 年份:2015 文献类型 :期刊 关键词: 湖流  鄱阳湖  分布特征 
描述:基于2010—2014年湖流监测资料,分析了鄱阳湖流分布特征。结果表明:(1)鄱阳湖北部湖区流速最大,其次为主湖区、入江水道区,东部湖区最小;主槽流速大于洲滩和湾;枯水期流速大于平水期和丰水期
全文:基于2010—2014年湖流监测资料,分析了鄱阳湖流分布特征。结果表明:(1)鄱阳湖北部湖区流速最大,其次为主湖区、入江水道区,东部湖区最小;主槽流速大于洲滩和湾;枯水期流速大于平水期和丰水期
水位对鄱阳湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湿地灰化薹草生理生态特征的影响研究
鄱阳湿地植被时空分布特征及其对水位变化的响应研究
作者: 谭志强  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:鄱阳湿地植被时空分布特征及其对水位变化的响应研究
水位对鄱阳湿地灰化薹草生理生态特征的影响研究
作者: 冯文娟  来源:中国科学院大学 年份:2015 文献类型 :学位论文
描述:水位对鄱阳湿地灰化薹草生理生态特征的影响研究
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